Genealogy / information on the surname Dubrawski? [3]

hi does anyone know any information on the surname Dubrawski... i have found out that it belongs to battle cry sas coat of arms but i cant get any information of why and how this came about please help with any information , links or a trusted site. (not a site that wants my cash) . if a noble what title would they be called lords,baron, duke and so on. many thanks..